Free Gravel Calculator Estimate Tons, Yards & Cost
Calculate exactly how much gravel you need for your driveway, patio, walkway, or landscaping project.
Planning a driveway, walkway, or landscaping project? Not knowing exactly how much gravel you need leads to costly over-ordering or frustrating shortages.
This free gravel calculator and estimator handles any project — from small patios to large driveways. Simply enter dimensions, select gravel type, add waste factor, and get instant estimates in cubic yards, tons, and total cost. Whether you’re a homeowner or contractor, this gravel quantity calculator helps you order the right amount every time.
gravel-calculator
Estimate the gravel you need for your driveway, patio, walkway, or landscaping project.
This gravel bag calculator shows exactly how many bags you need based on your project size.
How to Calculate Gravel with This Free Gravel Calculator – Step by Step Guide
Estimating how much gravel you need is straightforward. Follow these four simple steps to get an accurate gravel calculation for your project using gravel calculator.
Step 1: Measure the Area:
The gravel calculator starts by measuring the length and width of your project area. This landscape gravel calculator works for any shape or size. of the area you want to cover with gravel. For rectangular or square areas, simply multiply these two numbers to get the square footage.
Formula: Area (sq ft) = Length × Width
Example: A driveway that is 20 feet long and 10 feet wide has an area of 200 square feet. Using a gravel calculator, you can see how this area translates to actual gravel volume.
Pro Tip: For irregular shapes like L-shaped gardens or curved walkways, divide the space into smaller rectangles or circles, calculate each area separately, and then add them together. The gravel calculator can handle any shape once you have your total area.
Step 2: Determine the Depth:
The depth of gravel you need depends on your project type.Using a gravel calculator, you can see that a 20×10 ft driveway at 4 inches deep requires approximately 2.47 cubic yards of gravel before adding a waste factor. to determine your exact volume and weight requirements. Here are general guidelines to help you choose the right depth:
| Project Type | Recommended Depth |
|---|---|
| Walkways & Paths | 2–3 inches |
| Patios & Garden Paths | 3–4 inches |
| Driveways (standard) | 4–6 inches |
| Driveways (heavy traffic) | 8–12 inches |
| French Drains | 8–12 inches |
| Decorative Landscaping | 1.5–2 inches |
Important: Convert inches to feet by dividing by 12.
Formula: Depth (ft) = Depth (inches) ÷ 12
For example, 4 inches ÷ 12 = 0.33 feet.
Step 3: Calculate the Volume:
A gravel volume calculator now multiplies your area by the depth to find the volume in cubic feet.
Formula: Volume (ft³) = Length × Width × Depth (in feet)
Example: 20 ft × 10 ft × 0.33 ft = 66.7 cubic feet
To convert cubic feet to **cubic yards** (the unit most gravel suppliers use), divide by 27. A gravel estimator does this conversion instantly, so you don’t have to do the math manually.
Formula: Cubic Yards = Cubic Feet ÷ 27
Example: 66.7 ÷ 27 = 2.47 cubic yards.
Using a gravel coverage calculator, you can see that a 20×10 ft driveway at 4 inches deep requires approximately 2.47 cubic yards of gravel before adding a waste factor. at 4 inches deep requires approximately 2.47 cubic yards of gravel before adding a waste factor.
Step 4: Convert Volume to Weight:
Gravel is typically sold by the ton. A gravel weight calculator converts cubic yards to tons by multiplying by the material’s density. This gravel for driveway calculator gives you this final number instantly, so you know exactly what to order.
Formula: Tons = Cubic Yards × Density (tons per cubic yard)
Standard density for most gravel: Approximately 1.4 tons per cubic yard
Example: 2.47 cubic yards × 1.4 = 3.46 tons
Final Result: You would need approximately **3.5 tons** of gravel for a 20×10 ft driveway at 4 inches deep. A gravel for the driveway calculator gives you this final number instantly, so you know exactly what to order. This gravel weight calculator also helps you convert volume to tons with precision, so you know exactly what to order.
Gravel Types and Coverage Guide:
Different gravel types have different densities, appearances, and best uses. A gravel estimator includes these options so you can get accurate results for your specific material.
Gravel Cost Estimates (Per Ton & Per Yard)
Understanding gravel costs helps you budget accurately for your project. A gravel cost estimator gives you a clear picture of material expenses, while a gravel price calculator helps you compare different types and quantities. Prices vary based on material type, location, and delivery.
Average Prices by Type (2025–2026)
| Gravel Type | Cost Per Ton | Best Uses |
|---|---|---|
| Crushed Stone | $10 – $50 | Driveways, pathways, base material |
| Pea Gravel | $25 – $53 | Landscaping, walkways, decoration |
| River Rock | $35 – $90 | Water features, premium landscaping |
Source: Industry pricing data
Coverage Estimates
| Depth | Square Feet per Ton | Square Feet per Cubic Yard |
|---|---|---|
| 2 inches | ~100 sq ft | ~160 sq ft |
| 3 inches | ~65 sq ft | ~108 sq ft |
| 4 inches | ~50 sq ft | ~80 sq ft |
| 6 inches | ~35 sq ft | ~54 sq ft |
Based on standard crushed stone density
Delivery Considerations:
- Delivery fee: Typically adds $50–$300 depending on distance.
- Use a gravel delivery calculator to estimate total cost with delivery. Looking for bulk gravel near me? This calculator helps you find the right quantity for truckload delivery.
- Truckload: A standard 12–15 ton load costs approximately $500–$1,000 including delivery
- Most homeowners pay: $600–$1,800 for gravel projects
💡 Pro Tip: Always order 5–15% extra gravel to account for compaction, spillage, and uneven ground. Gravel can settle by 20–30% after installation, especially in high-traffic areas.
Recommended Gravel Depth by Project Type:
Choosing the right depth is critical for the longevity and functionality of your project.
Frequently Asked Questions:
Here are answers to common questions about estimating gravel for your project using a gravel needed calculator, gravel estimator, or gravel calculator. Find out exactly how much material you need for any project.
Use this free gravel estimator and gravel calculator to estimate exactly how much gravel you need for your driveway, walkway, patio, or landscaping project. This online gravel calculator provides instant results in cubic yards, tons, bags, and total cost.
Simply enter the length, width, and depth of your area, select gravel type, add waste factor, and get instant results in cubic yards, tons, bags, and total cost. Plan your project with confidence and order the right amount every time.
From the Blog
- How to Lay a Gravel Driveway — Step-by-step installation guide
- Pea Gravel vs Crushed Stone: Which is Better? — Detailed comparison
- Gravel Cost Per Ton Guide — Complete pricing breakdown
- Gravel Depth Guide — How deep should you go for every project?
- French Drain Installation Guide — Step-by-step drainage solution